package com.chenzehe.java.core.json;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.SerializerProvider;
/**
 * 自定义jackson日期格式序列化方法 ,使用方法：
 * @JsonSerialize(using=JsonDateSerializer.class)
 *	public Date getDate() {
 *	    return date;
 *	} 
 * @author Administrator
 */
public class JsonDateSerializer extends JsonSerializer<Date>{

    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");

    @Override
    public void serialize(Date date, JsonGenerator gen, SerializerProvider provider)
            throws IOException, JsonProcessingException {

        String formattedDate = dateFormat.format(date);

        gen.writeString(formattedDate);
    }

} 